package builder;/*
 * @auther 顶风少年
 * @mail dfsn19970313@foxmail.com
 * @date 2019-07-25 17:44
 * @notify
 * @version 1.0
 */

abstract public class Builder {
    public abstract void buildPart1();
    public abstract void buildPart2();
    public abstract Product retrieveResult();
}
